What are the latest key management techniques for winter wheat?
Wheat is one of the main food crops in China, and its planting area in China is very large. Wheat is divided into spring wheat and winter wheat, and now winter is gradually approaching. Winter wheat has also reached its sowing and planting period. Although winter wheat should be planted in winter by nature, because of winter weather temperatures and other factors, we still need to do a good job in management. So how should winter wheat be managed? Let's take a look together below!
1. Pay attention to frost protection
When planting winter wheat, management should be carried out according to local conditions. Because winter temperatures are very low, frost protection work is very important, with the goal of improving the cold resistance of winter wheat and increasing the yield for the second year. First, for suspended-root seedlings in fields with poor soil quality and large field blocks, soil should be hilled up, mainly with soil and miscellaneous fertilizer. This can provide frost protection and seedling preservation for wheat seedlings, and then before winter arrives, an appropriate amount of freezing water should be poured. If the seedling stage is poor and sowing was too late, then timely intertillage and loosening of the soil should be carried out to avoid soil compaction, increase soil temperature, and cultivate strong seedlings.
2. Reasonable watering
In autumn and winter, there are generally fewer rainy days, and the soil is prone to drought. Therefore, when planting winter wheat, watering to prevent drought is also very important. Many times, overwintering wheat fields experience relatively severe drought, and the soil moisture condition is very poor. So, when the temperature rises somewhat and the soil freezes at night and thaws during the day, attention should be paid to doing a good job in watering to provide sufficient water for the root growth of winter wheat. However, when watering, attention should be paid to controlling the water temperature and watering time. Watering must never be done when the temperature is low, to prevent wheat seedlings from suffering frost damage and affecting growth.
3. Prevent excessive growth
⟦NL>When planting winter wheat, attention should also be paid to preventing excessive growth. If sowing is too early, then in the early stage it is easy to form excessively grown seedlings, and their growth capacity will gradually weaken in the later stage. If they are in a low-temperature winter environment for a long time, then they are extremely susceptible to frost damage. Therefore, on sunny mornings, we should appropriately press the soil to avoid excessive growth of the main stem and large tillers of wheat seedlings. When pressing, if there is dew on the seedlings or frost occurs, then it cannot be done, to avoid injuring the young seedlings. After pressing, the work of shallow hoeing and watering with freezing water should be done well. Then an appropriate amount of ammonium bicarbonate and other substances should be applied to inhibit excessive growth of wheat seedlings and avoid frost damage to wheat.
4. Pest and disease control
Usually, about half a month after sowing winter wheat, the seedlings will emerge uniformly. After the seedlings emerge uniformly, we should focus on doing a good job in pest and disease control. About three weeks after the young seedlings emerge, diseases such as rust disease and sheath blight may very likely appear. When the incidence rate reaches about 1/10, pesticide should be sprayed promptly for control. If it is rust disease, then diniconazole wettable powder or triadimefon wettable powder and other agents can be used, diluted with water for spraying. If it is sheath blight, triadimenol can also be used, or jinggangmycin can also be used.
The above is a brief introduction to how to manage winter wheat. That is all for today's introduction. This article is for reference only, and we hope it can help everyone!